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Homelite
Gas Chainsaw

Model # Z3850-18 INCH Official Homelite chainsaw

Here are the diagrams and repair parts for Official Homelite Z3850-18-INCH chainsaw, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 116 parts  |
Guide Bar Plate 07404
#11

Chain brake-drive case cover diagram

Guide bar plate

Part #07404

The manufacturer no longer makes this part, and there's no substitute part

Cylinder Assembly A08666
#6

Engine internal diagram

Cylinder assembly

Part #A08666

The manufacturer no longer makes this part, and there's no substitute part

Carburetor Spacer Seal 06873
#14

Carburetor-muffler-air filter diagram

Carburetor spacer seal

Part #06873

The manufacturer no longer makes this part, and there's no substitute part

Bar, 18-in PT-18371-OD

#NI

All parts diagram

Bar, 18-in

Part #PT-18371-OD

The manufacturer no longer makes this part, and there's no substitute part

Truss Head Screw 82597
#15

Handles diagram

Truss head screw

Part #82597

The manufacturer no longer makes this part, and there's no substitute part

Pivot Lh 07393
#7

Chain brake-drive case cover diagram

Pivot lh

Part #07393

The manufacturer no longer makes this part, and there's no substitute part

Guide Bar Plate 07405
#12

Chain brake-drive case cover diagram

Guide bar plate

Part #07405

The manufacturer no longer makes this part, and there's no substitute part

Lawn & Garden Equipment Screw 82615
Lawn & garden equipment screw

Part #82615

The manufacturer no longer makes this part, and there's no substitute part

Rr Hndl Kit A08675
#0

Handles diagram

Rr hndl kit

Part #A08675

The manufacturer no longer makes this part, and there's no substitute part

Spacer 04916
#13

Carburetor-muffler-air filter diagram

Spacer

Part #04916

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for gas chainsaws

Choose a symptom to see related chainsaw repairs.

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Why won't my chainsaw start?

Main causes: stale gasoline, cracked fuel lines, dirty carburetor, damaged spark plug, worn piston rings…

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Why does my chainsaw run roughly?

Main causes: bad gas, engine needs tune up, cracked fuel lines, dirty carburetor…

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What should I do if my chainsaw leaks gas?

Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank…

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Repair guides for gas chainsaws

These step-by-step repair guides will help you safely fix what’s broken on your chainsaw.

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How to rebuild a chainsaw carburetor

How to rebuild a chainsaw carburetor

If your chainsaw isn't running well, a dirty carburetor could be the problem. You can take it apart, clean it and rebuil…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace chainsaw fuel lines

How to replace chainsaw fuel lines

The fuel line on a chainsaw becomes brittle over time and can crack. Replacing it doesn't require a lot of DYI experienc…

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Repair difficulty
Time required
 15 minutes or less
How to replace a chainsaw carburetor

How to replace a chainsaw carburetor

If the engine won't start even though there's fuel in the chainsaw, the carburetor could be the problem. Sometimes, it's…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your chainsaws

Use the advice and tips in these articles and videos to get the most out of your chainsaw.

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What are the most common replacement parts for chainsaws?

What are the most common replacement parts for chainsaws?

Learn about the most common replacement parts for chainsaws and how they can help you fix chainsaw problems.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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